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Automatic Train Control over LTE: Design and Performance Evaluation

Authors
Kim, J (Kim, Juyeop)Choi, SW (Choi, Sang Won)Song, YS (Song, Yong-Soo)Yoon, YK (Yoon, Yong-Ki)Kim, YK (Kim, Yong-Kyu)
Issue Date
Oct-2015
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE COMMUNICATIONS MAGAZINE, v.53, no.10, pp.102 - 109
Journal Title
IEEE COMMUNICATIONS MAGAZINE
Volume
53
Number
10
Start Page
102
End Page
109
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/147118
DOI
10.1109/MCOM.2015.7295470
ISSN
0163-6804
Abstract
Due to technical advances in train control and wireless communications, unmanned train operation has gained in popularity of late. On the other hand, any errors involved in managing the QoS of train control traffic will cause negative consequences such as possible loss of life. Operators therefore naturally wish to scrutinize the specifications so that the wireless communications system is capable of guaranteeing the QoS of the train control traffic. In this article, we propose a feasible QoS management scheme for train control traffic based on the methodology used in a conventional LTE system. Based on the proposed scheme, we evaluate the feasibility of the LTE system using a testbed built in a commercial railway region. The key issues to support the train control services by the LTE system are the design of a QoS policy based on analyzing the characteristics of the train control traffic and the appropriate adjustment of the cell parameters during the cell planning and optimization procedures in order to resolve any network issues that may cause problems with data pause.
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ICT융합공학부 (전자공학전공)
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